Attachment to sulky-plows.



P. 'A. DOYLE, ATTACHMENT To sum PLows. APPLICATION FILED IULY 22, 1914- 1,138,546., Patented May 4, 1915.

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THE NORRIS PETERS PATRICK A. DoYLE, orcornivnnenn, NEW YORK.

ATTACHMENT T0 SULKY-PLOWS.

Specification of Letters Patent. Patented May 4, 1915. i

Application filed July 22, 1914. SerialNo. 852,449.

To all whom it may concern Be it known that I, PATRICK A. DOYLE, a citizen of the United States, residing at Copenhagen, in the county of Lewis and State of New York, have invented certain new and useful Improvements in Attachments to Sulky-Plows; and I do hereby declare the following to be a full, clear, and exact de` scription of the invention, suchV as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in attachments to sulky plows, the object in view being to attach to the usual drop axle shaft of a sulky plow a beam to which a subsoiler is adapted to be attached and provided for the purpose of subsoiling a furrow after the plow has turned the same, thereby loosening up the material underneath the depth at which the furrow is turned and thus affording means for retaining moisture in the soil for use of the growing crop planted upon the ground thus prepared.

More specifically, the present invention consists in the provision of a subsoiler attachment having a beam with osets or bent portions and adapted to be clamped to the axle of a sulky plow in such a manner that the beam may be raised and lowered similar to the plow and so positioned that the `subsoiler will cut in the ground adjacent to the bank from which the furrow has been cut.

The present invention is illustrated in the accompanying drawings, in which:

Figure 1 is a side elevation of a sulky plow having my improved subsoiler attachment connected thereto. Fig. 2 is a view showing the drop axle tilted to raise the subsoiler, and Fig. 3 is a top plan view of the subsoiler beam.

Reference now being had to the details of lthe drawings by letter, A designates a yoke forming a part of the frame of the apparatusVv and A3 designate two complemental crank axles, pivotally connected at their adjacent upper ends upon the bearing A2 and the outerend of each crank axle has a wheel B ournaled thereon. A crank arm I is clamped by means of the plates I to an angled portion of the crank axle A3 and its upper end is pivotally mounted upon a pin K mounted in the lower end of the yoke A. Boxings, designated by letter A5, are fastened together and form bearings for the horizontally disposed portions of the crank axles and to the upper of the boxings A5 an L-shaped plate J projects and to the upright wall of which the beams B and D are bolted, the rbeam B carrying the ordinary plow DX, while the beam D, which forms the subject matter of the present invention, is curved as shown clearly in Fig. 2 of the drawings and its other end positioned in the rear of the left wheel of the plow and has a left hand subsoiler D secured to its end. Levers C are fastened, one to eachV crank axle and a segment O is, fastened to the frame and has teeth upon its inner marginal edge adapted to be engaged by a pawl carried by the bar R which in turn is pivotally connected to the angle lever R and affords means whereby, when the pawl is released, the handle C may be swung in order to cause one of the crank axles to rock in its pivotal bearings and tilt the beam carrying the subsoiler or the plow as the case may be.

The mechanism for automatically causing the plow or subsoiler beams to be automatically raised from the ground in the event of an obstruction being struck by the plow or subsoiler point, or for any other reason, consists of a ratchet wheel S which is iixed to the outer ends of a crank axle and a pawl S for engagement with the teeth of the ratchet wheel, said pawl being pivotally connected to a yoke R4 which in turn is pivotally connected by means of a link R3 with a lever R2 which is pivotally mounted upon a pivot pin R6 andl which yoke R4 is also pivotally connected to a link R which in turn is pivoted to the angle lever R upon the lever C. A tread crank Q, is journaled in suitable bearings Q, fastened to the frame, and has pivotalconncction with the lower end of a bar R7 which is pivoted at its upper end to the end of the lever R2.

The mechanism for raising and lowering the plow and subsoiler beams as shown and described forms no part of the present invention and is Vof the common construction employed in a certain type of sulky plow to which the present invention is applicable.

In operation, when it is desired to raise the left hand subsoiler from the ground to the position shown in the drawings, the operator, by releasing the pawlthrough the medium of the lever It from the notch in the segment O, may cause the crank axle to which the beam D is fastened to rock to raise the subsoiler and which may be held in position by releasing the pawl to engage another notch in the segment. In the event of the subsoiler being thrown to operative position and striking an obstruction, the operator may, by pressing down upon the crank member cause the same to rock and, through its connection with the pawl S, cause the latter to be thrown into engagement with the ratchet wheel S, thereby causing the handle to rock with the crank and cause the beam D to be quickly thrown to an upright position. After the plow has thrown a furrow of ground, it is the purpose of the present invention to reverse the apparatus and cause the subsoiler to return and cut a second and deeper furrow, thus loosening the subsoiler at considerable depth and better adapting the soil for retaining Copies of thisA patent may be obtained for moisture for germination and growth of grain, etc.

` What I claim to be new is In combination with a sulky plow having drop axles with wheels journaled thereon, a plow secured to one of said axles, bearing plates secured to the other axle, an L- shaped member secured to one of said bearing plates, a subsoiler beam having a shank portion which is straight a portion of its length, engaging said L-shaped plate and fastened thereto and curved rearwardly of its point of connection with the plate and extending downwardly in the rear of the adjacent wheel of the beam, a subsoiler projecting laterally from the lower end of the beam and positioned in the furrow in which the adjacent wheel moves, and means for raising and lowering the drop axles.

In testimony whereof I hereunto affix my signature in presence of two witnesses.

PATRICK A. DOY'LE.

Witnesses:

Gr. D. BLODGETT, B. D. NoR'rI-Inor.

five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

